Basalt fiber drawing conditioning method, system, device, and medium

By detecting abnormal features in real time through melt viscosity and drawing state images, and obtaining temperature adjustment parameters, the problem of basalt fiber drawing control relying on manual experience has been solved, achieving adaptive adjustment and improving adjustment efficiency and accuracy.

CN120717681BActive Publication Date: 2026-04-28CHENGDU SHUHONG EQUIP MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU SHUHONG EQUIP MFG
Filing Date
2025-05-29
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing methods for controlling the drawing of basalt fibers rely on manual experience, making it difficult to achieve adaptive adjustment, resulting in low adjustment efficiency and poor accuracy.

Method used

By real-time detection of the melt viscosity in the casting furnace and identification of abnormal features by combining multiple images of the wire drawing state, temperature adjustment parameters are obtained, the viscosity-temperature curve is updated, and adaptive adjustment is achieved.

Benefits of technology

This improved the accuracy and reliability of monitoring data, reduced human error, increased adjustment efficiency, and ensured the stability and quality of basalt fiber drawing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a basalt fiber drawing adjusting method, system, device and medium, relates to the basalt fiber drawing control technical field, and comprises the following steps: obtaining the melt viscosity in the casting furnace; judging whether the melt viscosity is within the range of the preset viscosity threshold value, if yes, returning to obtaining the melt viscosity in the casting furnace, if not, continuously obtaining multiple drawing state images of the basalt fiber in unit time; according to the multiple drawing state images, identifying whether there is a drawing abnormal feature, if not, returning to obtaining the melt viscosity in the casting furnace, if yes, obtaining a first temperature adjusting parameter; wherein the first temperature adjusting parameter is used for adjusting the melt temperature in the casting furnace; the first temperature adjusting parameter is input into a viscosity-temperature initial curve of a drawing process to obtain a viscosity-temperature target curve, and the application has the advantages of self-adaptive adjustment and improved adjusting efficiency.
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Description

Technical Field

[0001] This application relates to the field of basalt fiber drawing control technology, and in particular to a basalt fiber drawing adjustment method, system, equipment and medium. Background Technology

[0002] Basalt fiber drawing is a process in which basalt ore undergoes a series of treatments and meltings, and is ultimately stretched into fibers. This process mainly includes the following key steps: raw material preparation, melt treatment, fiber stretching, fiber forming, and fiber post-treatment. Each step requires precise control and adjustment to ensure the quality and performance of the final fiber.

[0003] Viscosity is a key indicator for drawing continuous basalt fibers, and it is also an important parameter directly related to temperature. Generally, viscosity decreases as temperature increases, and the drawing temperature for basalt fibers is higher than that for glass fibers. The viscosity of molten basalt glass does not change much at high temperatures, but gradually increases as the temperature decreases, and then increases sharply at low temperatures (the rate at which the viscosity of molten glass increases during cooling is called the hardening rate). The hardening rate of basalt glass melt is related to the viscosity-temperature curve of basalt itself. Since basalt contains a high amount of iron oxide (generally 10%-15%), the hardening rate of basalt glass melt is very fast, which brings great difficulties to the wire drawing operation. However, the wire drawing temperature cannot be too high and must meet the requirements of platinum-rhodium (Pt-Rn) alloy for wire drawing. The temperature-viscosity curve of the basalt molten glass must meet the requirements of the wire drawing process. Therefore, it is necessary to adjust the temperature in real time according to the wire drawing situation to prevent the wire from breaking due to crystallization tendency caused by too low temperature, or due to too high temperature resulting in low viscosity and too thin wire diameter, which also easily leads to the risk of wire breakage.

[0004] Because the composition of natural basalt ore varies greatly, it is necessary to conduct composition analysis in advance to obtain the corresponding viscosity-temperature curve, and then adjust the drawing process parameters. However, this method is extremely inefficient. Alternatively, one can directly enter the drawing process and adaptively adjust the drawing process parameters by manually identifying the drawing state until the drawing quality requirements are met. However, this control method relies on human experience, and the human error is large, the accuracy is low, and it requires frequent and multiple adjustments. The adjustment efficiency is also relatively low, and it is difficult to achieve adaptive adjustment. Summary of the Invention

[0005] The main purpose of this application is to provide a method, system, equipment and medium for adjusting the drawing of basalt fibers, which aims to solve the technical problem that existing methods for controlling the drawing of basalt fibers rely on manual experience and are difficult to achieve adaptive adjustment.

[0006] To achieve the above objectives, this application provides a method for adjusting the drawing of basalt fibers, comprising the following steps:

[0007] The viscosity of the melt in the casting furnace is obtained; wherein the casting furnace is used to hold the molten basalt glass.

[0008] Determine whether the melt viscosity is within the preset viscosity threshold range. If yes, return to obtain the melt viscosity in the casting furnace. If no, continuously acquire multiple images of the basalt fiber drawing state per unit time.

[0009] Based on multiple images of the wire drawing state, identify whether there are any abnormal wire drawing characteristics. If not, return to obtain the viscosity of the melt in the casting furnace. If yes, obtain the first temperature adjustment parameter. The first temperature adjustment parameter is used to adjust the temperature of the melt in the casting furnace.

[0010] The first temperature adjustment parameter is input into the viscosity-temperature initial curve of the fiber drawing process to update and obtain the viscosity-temperature target curve.

[0011] Optionally, based on multiple images of the stringing state, identify whether there are abnormal stringing features, including:

[0012] Identify the actual number of basalt fibers in each drawn image;

[0013] Determine whether the actual number of fibers is equal to the preset fiber count threshold. If not, identify the presence of the first abnormal fiber drawing feature. If yes, identify the diameter parameter of the basalt fiber in each fiber drawing state image. The first abnormal fiber drawing feature is basalt fiber breakage.

[0014] Determine whether a single image of the basalt fiber drawing state has n diameter parameters that are less than a preset diameter threshold. If so, identify the presence of a second basalt fiber drawing anomaly. If not, identify the absence of a second basalt fiber drawing anomaly. The second basalt fiber drawing anomaly is that the basalt fibers are too fine.

[0015] Optionally, the diameter parameters of the basalt fibers in each drawn state image are identified, including:

[0016] The target area is extracted from the image of the filament drawing state to obtain the target image; the target image contains only one basalt fiber.

[0017] The target image is then sequentially enlarged and its edges are sharpened.

[0018] The processed target image is segmented to obtain multiple sub-images; wherein the segmentation direction is perpendicular to the length direction of the basalt fiber.

[0019] The sub-images are sequentially enlarged and their edges sharpened.

[0020] Obtain the measured length of the target line in the processed sub-image; where the target line is the strip projection of the segmented basalt fiber;

[0021] The measured length is output as a diameter parameter.

[0022] Optionally, the bottom of the casting furnace is connected to a common sluice plate and a special sluice plate. A baffle valve is installed at the bottom of the casting furnace. The baffle valve is used to block only the common sluice plate or the special sluice plate. The special sluice plate includes a temperature control box connected to the bottom of the casting furnace. The temperature control box contains a temperature control medium. Multiple vertically arranged flow channels are installed through the temperature control box. The top of the flow channels is connected to the casting furnace. Each flow channel is equipped with a leak at the bottom.

[0023] After obtaining the first temperature adjustment parameter, the following is also included:

[0024] Obtain the baffle valve switching signal to switch the baffle valve to the position that blocks the top of the ordinary leak plate;

[0025] The melt viscosity is compared with the viscosity threshold to obtain the comparison results;

[0026] Based on the comparison results, a second temperature adjustment parameter is obtained; wherein, the second temperature adjustment parameter is used to adjust the temperature of the temperature-regulating medium.

[0027] Optionally, the comparison results include a first comparison result and a second comparison result, and the second temperature adjustment parameter includes a temperature increase parameter and a temperature decrease parameter; wherein, the first comparison result is the maximum value of the melt viscosity greater than the viscosity threshold, and the second comparison result is the minimum value of the melt viscosity less than the viscosity threshold;

[0028] Based on the comparison results, the second temperature adjustment parameters are obtained, including:

[0029] If it is identified as the first comparison result, then obtain the temperature adjustment parameter;

[0030] If identified as the second comparison result, the temperature reduction parameter is obtained.

[0031] Optionally, let the adjustment value of the second temperature adjustment parameter be ΔQ, and the expression for ΔQ be:

[0032] ΔQ = |K*η - Q|;

[0033] In the formula, K is the correlation coefficient, η is the ideal viscosity, and Q is the current temperature of the temperature-regulating medium.

[0034] Optionally, after obtaining the first temperature adjustment parameter, the method further includes:

[0035] Obtain the parameters for adjusting the speed of the wire winding machine.

[0036] To achieve the above objectives, this application also provides a basalt fiber drawing adjustment system, comprising:

[0037] The viscosity acquisition module is used to acquire the viscosity of the melt in the casting furnace; wherein, the casting furnace is used to hold the molten basalt glass.

[0038] The first data processing module is used to determine whether the melt viscosity is within the preset viscosity threshold range. If it is, it returns to the process of obtaining the melt viscosity in the casting furnace. If not, it continuously obtains multiple images of the basalt fiber drawing state per unit time.

[0039] The second data processing module is used to identify whether there are abnormal wire drawing characteristics based on multiple wire drawing state images. If not, it returns to obtain the viscosity of the melt in the casting furnace. If so, it obtains the first temperature adjustment parameter. The first temperature adjustment parameter is used to adjust the temperature of the melt in the casting furnace.

[0040] The curve adjustment module is used to input the first temperature adjustment parameter into the viscosity-temperature initial curve of the drawing process in order to update and obtain the viscosity-temperature target curve.

[0041] To achieve the above objectives, this application also provides a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-described method.

[0042] To achieve the above objectives, this application also provides a computer-readable storage medium storing a computer program, on which a processor executes the computer program to implement the above-described method.

[0043] The beneficial effects that this application can achieve are as follows:

[0044] This application first detects and acquires the viscosity of the melt in the casting furnace in real time. Since the viscosity of basalt ore with different compositions varies after melting under the same temperature conditions, it first determines whether the melt viscosity is within a preset viscosity threshold range. This viscosity threshold is the ideal viscosity range for stable basalt fiber drawing. If it is within this range, the detection continues; if not, it indicates a potential problem with the drawing quality. To improve monitoring accuracy and reduce the randomness or error of monitoring only a single melt viscosity data point, multiple images of the basalt fiber drawing status are continuously acquired per unit time. Based on these multiple images, it is possible to identify any abnormal drawing characteristics. If none are found, it indicates a possible error in the melt viscosity detection, and the process returns to acquiring the melt viscosity from the casting furnace. The melt viscosity is continuously monitored. If a viscosity threshold is present, a first temperature adjustment parameter is obtained based on the current melt viscosity to adjust the melt temperature in the casting furnace so that the melt reaches the viscosity threshold range. Simultaneously, the first temperature adjustment parameter is input into the initial viscosity-temperature curve of the drawing process to update and obtain the target viscosity-temperature curve. This target viscosity-temperature curve can be used to guide the melting and drawing process of the current basalt ore. Therefore, this application's online monitoring and identification based on viscosity threshold and drawing state image has high identification accuracy, reduces the randomness and error of single monitoring data, improves the reliability of monitoring data, and thus enables adaptive adjustment of the viscosity-temperature curve, avoiding human error and improving adjustment efficiency. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0046] Figure 1 This is a schematic flowchart of a basalt fiber drawing adjustment method according to an embodiment of this application;

[0047] Figure 2 This is a schematic diagram of the wire drawing device in an embodiment of this application;

[0048] Figure 3 This is a schematic diagram of another usage state of the wire drawing device in the embodiments of this application;

[0049] Figure 4 This is a schematic diagram illustrating the principle of image segmentation based on a target image in an embodiment of this application.

[0050] Figure label:

[0051] 110-Casting furnace, 120-Ordinary sprue, 130-Special sprue, 131-Temperature control box, 132-Temperature control medium, 133-Flow channel pipe, 140-Baffle valve, 150-Wire winding machine, 160-Bundler, 170-Basalt fiber.

[0052] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0054] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0055] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0057] Example 1

[0058] Reference Figures 1-4 This embodiment provides a method for adjusting the drawing of basalt fibers, including the following steps:

[0059] The viscosity of the melt in the casting furnace 110 is obtained; wherein, the casting furnace 110 is used to hold the molten basalt glass.

[0060] Determine whether the melt viscosity is within the preset viscosity threshold range. If yes, return to obtain the melt viscosity in the casting furnace 110. If no, continuously obtain multiple images of the basalt fiber 170 in the drawing state per unit time.

[0061] Based on multiple images of the wire drawing state, identify whether there are any abnormal wire drawing characteristics. If not, return to obtain the melt viscosity in the casting furnace 110. If yes, obtain the first temperature adjustment parameter. The first temperature adjustment parameter is used to adjust the melt temperature in the casting furnace 110.

[0062] The first temperature adjustment parameter is input into the viscosity-temperature initial curve of the fiber drawing process to update and obtain the viscosity-temperature target curve.

[0063] In this embodiment, the viscosity of the melt in the casting furnace 110 is first detected and acquired in real time. Since the viscosity of basalt ore with different compositions varies after melting under the same temperature conditions, it is first determined whether the melt viscosity is within a preset viscosity threshold range. This viscosity threshold is the ideal viscosity range for stable basalt fiber 170 drawing. If it is within this range, the detection continues. If it is not, it indicates a potential problem with the drawing quality. To improve monitoring accuracy and reduce the randomness or error of monitoring only a single melt viscosity data point, multiple drawing status images of basalt fiber 170 are continuously acquired per unit time. Based on these multiple drawing status images, it is possible to identify whether there are any abnormal drawing characteristics. If not, it indicates a possible error in the melt viscosity detection, and the process returns to the acquisition... The viscosity of the melt in the casting furnace 110 is continuously monitored. If a viscosity is found, a first temperature adjustment parameter is obtained based on the current melt viscosity to adjust the melt temperature in the casting furnace 110 so that the melt reaches the viscosity threshold range. Simultaneously, the first temperature adjustment parameter is input into the viscosity-temperature initial curve of the drawing process to update and obtain the viscosity-temperature target curve. This viscosity-temperature target curve can be used to guide the melting and drawing process of the current basalt ore. Therefore, this embodiment, based on online monitoring and identification of viscosity threshold and drawing state image, has high identification accuracy, reduces the randomness and error of single monitoring data, improves the reliability of monitoring data, and thus enables adaptive adjustment of the viscosity-temperature curve, avoids human error, and improves adjustment efficiency.

[0064] It should be noted that the viscosity of the melt in the casting furnace 110 can be monitored online in real time using a viscometer, and the temperature of the melt in the casting furnace 110 can be monitored simultaneously using a thermometer. The first temperature adjustment parameter can be divided into a temperature increase parameter and a temperature decrease parameter. When the melt viscosity is greater than the viscosity threshold, it is a temperature increase parameter; otherwise, it is a temperature decrease parameter. A heating device and a cooling device can be installed outside the casting furnace 110. When it is necessary to heat up or cool down the casting furnace 110 according to the temperature increase parameter or the temperature decrease parameter, the corresponding heating device or cooling device can be activated until the ideal temperature is reached to adjust the melt viscosity.

[0065] As an optional implementation, based on multiple images of the wire drawing state, the presence of abnormal wire drawing characteristics is identified, including:

[0066] Identify the actual number of basalt fibers 170 in each drawn state image;

[0067] Determine whether the actual number of fibers is equal to the preset fiber count threshold. If not, identify the presence of the first abnormal fiber drawing feature. If yes, identify the diameter parameter of basalt fiber 170 in each fiber drawing state image. The first abnormal fiber drawing feature is the breakage of basalt fiber 170.

[0068] Determine whether a single image of the wire drawing state has n diameter parameters that are less than a preset diameter threshold. If so, identify the presence of a second wire drawing anomaly feature; otherwise, identify the absence of a second wire drawing anomaly feature. The second wire drawing anomaly feature is that the basalt fiber 170 is too fine.

[0069] In this embodiment, the abnormal fiber drawing features are divided into two categories: one is that the fiber has already broken, and the other is that the diameter of the basalt fiber 170 is too thin, posing a risk of fiber breakage. Therefore, the more obvious basalt fiber 170 breakage features are identified first, that is, the actual number of basalt fiber 170s is identified through the fiber drawing state image. If it is not equal to the number of fibers (i.e., less than the number of fibers), it indicates that some basalt fiber 170s have broken. If there is no breakage feature, it is further identified whether there are n diameter parameters less than the preset diameter threshold in a single fiber drawing state image. If so, the second abnormal fiber drawing feature is identified; otherwise, it is not. Setting the feature recognition order reasonably can reduce the data processing pressure and improve efficiency. At the same time, it is set that n data satisfying the above conditions are required. n is positively correlated with the fiber drawing length. Here, n can be set as εL, where ε is the proportionality coefficient and L is the fiber drawing length. Therefore, setting n diameter parameters less than the diameter threshold as a constraint condition can reduce the influence of randomness or data error caused by insufficient detection data and improve the detection and recognition accuracy.

[0070] As an optional implementation, the diameter parameters of the basalt fibers 170 in each drawn state image are identified, including:

[0071] The target area is extracted from the drawing state image to obtain the target image; the target image contains only one basalt fiber 170.

[0072] The target image is then sequentially enlarged and its edges are sharpened.

[0073] The processed target image is segmented to obtain multiple sub-images; wherein the segmentation direction is perpendicular to the length direction of basalt fiber 170.

[0074] The sub-images are sequentially enlarged and their edges sharpened.

[0075] Obtain the measured length of the target line in the processed sub-image; where the target line is the strip projection of the segmented basalt fiber 170;

[0076] The measured length is output as a diameter parameter.

[0077] In this embodiment, because the basalt fiber 170 has a small diameter and is relatively long and thin, and multiple basalt fibers 170 can be drawn into filaments after exiting the perforator plate with multiple nozzles, and then simultaneously gathered into a bundle by the bundler 160, the multiple basalt fibers 170 are continuously drawn out of the perforator plate and formed into filaments under the traction of the winding machine 150 below the bundler 160. Therefore, the filament drawing image contains multiple basalt fibers 170 with different drawing angles under the action of the bundler 160. To improve the accuracy of detection and recognition, each basalt fiber 170 is individually cropped to form a corresponding target image, and then the image is enlarged and analyzed sequentially. Edge sharpening, for example, makes the magnified target object (i.e., the outline of basalt fiber 170) have sharp edges, which is convenient for subsequent feature recognition. Then, multiple segments are made based on the direction perpendicular to the length direction of basalt fiber 170 to obtain multiple sub-images. Then, the sub-images are magnified and the edges are sharpened in turn, so that the small diameter features of basalt fiber 170 that are not easy to identify are transformed into target line features with a certain length that are easy to identify. Finally, the measured length of the target line is identified as the diameter parameter, thus obtaining multiple sets of diameter parameters, improving the accuracy of data recognition, and providing a real and reliable data foundation for subsequent work.

[0078] As an optional implementation, the bottom of the casting furnace 110 is connected to a common sprue 120 and a special sprue 130. A baffle valve 140 is provided at the bottom of the casting furnace 110. The baffle valve 140 is used to block only the common sprue 120 or the special sprue 130. The special sprue 130 includes a temperature control box 131 connected to the bottom of the casting furnace 110. The temperature control box 131 contains a temperature control medium 132. Multiple vertically arranged flow channels 133 are arranged through the temperature control box 131. The top of the flow channels 133 is connected to the casting furnace 110. Each flow channel 133 is provided with a leak at the bottom.

[0079] After obtaining the first temperature adjustment parameter, the following is also included:

[0080] Obtain the switching signal of the baffle valve 140 to switch the baffle valve 140 to the position that blocks the top of the ordinary leakage plate 120;

[0081] The melt viscosity is compared with the viscosity threshold to obtain the comparison results;

[0082] Based on the comparison results, a second temperature adjustment parameter is obtained; wherein, the second temperature adjustment parameter is used to adjust the temperature of the temperature regulating medium 132.

[0083] In this embodiment, when the temperature of the casting furnace 110 needs to be adjusted, since the adjustment process takes a certain amount of time, in order to ensure continuous wire drawing, a specially designed stencil 130 is temporarily used as the wire drawing channel. Based on this new structure of the wire drawing device, the baffle valve 140 can be switched to the position of blocking the top of the ordinary stencil 120. The melt in the casting furnace 110 only enters the flow channel tube 133 and is finally discharged from the bottom nozzle. Since the flow channel tube 133 has a certain length, that is, the travel distance of the melt from entering the specially designed stencil 130 to being discharged, it is convenient for the temperature regulating medium 132 (such as heat transfer oil or water) to have enough time to effectively heat up or cool down the melt in the flow channel tube 133. And according to the comparison between the melt viscosity and the viscosity threshold, the comparison result is obtained, and the second temperature adjustment parameter can be calculated to temporarily adjust the melt temperature, that is, adjust the melt viscosity, so as to meet the wire drawing quality requirements, realize the continuous wire drawing function, prevent the casting furnace 110 from stopping production during the temperature adjustment process, and ensure production efficiency.

[0084] It should be noted that a bundler 160 can be installed below the ordinary die 120 and the special die 130, respectively. Alternatively, a movable bundler 160 can be installed, which can be moved to the corresponding ordinary die 120 or special die 130 as needed, thus adapting to different wire drawing stations. A heater can be installed in the temperature control chamber 131 to control the temperature of the temperature control medium 132. Initially, the heater is in a normally open state to maintain the temperature control medium 132 at a kept-temperature state. The heater can be controlled to operate adaptively according to the heating or cooling requirements.

[0085] As an optional implementation, the comparison results include a first comparison result and a second comparison result, and the second temperature adjustment parameter includes a temperature increase parameter and a temperature decrease parameter; wherein, the first comparison result is the maximum value of the melt viscosity greater than the viscosity threshold, and the second comparison result is the minimum value of the melt viscosity less than the viscosity threshold;

[0086] Based on the comparison results, the second temperature adjustment parameters are obtained, including:

[0087] If it is identified as the first comparison result, then obtain the temperature adjustment parameter;

[0088] If identified as the second comparison result, the temperature reduction parameter is obtained.

[0089] In this embodiment, when the melt viscosity is found to be greater than the maximum value of the viscosity threshold, the melt temperature needs to be increased by adjusting the temperature parameter to reduce the melt viscosity. Conversely, the melt temperature needs to be decreased by adjusting the temperature parameter to increase the melt viscosity.

[0090] As an optional implementation, let the adjustment value of the second temperature adjustment parameter be ΔQ, and the expression for ΔQ is:

[0091] ΔQ = |K*η - Q|;

[0092] In the formula, K is the correlation coefficient, η is the ideal viscosity, and Q is the current temperature of the temperature-regulating medium 132.

[0093] In this embodiment, the ideal viscosity η is the viscosity value with good drawing quality, which is generally the optimal value of the viscosity threshold. Through the correlation coefficient K, the value of K*η is the ideal temperature value. The absolute value of the difference between it and the current temperature Q of the temperature regulating medium 132 is the adjustment value corresponding to the second temperature adjustment parameter. It can be quantitatively calculated, and the calculation is accurate, which has reference and guidance.

[0094] As an optional implementation, after obtaining the first temperature adjustment parameter, the method further includes:

[0095] Obtain the speed reduction parameters for the 150-speed winding machine.

[0096] In this embodiment, when the temperature of the melt needs to be adjusted, the rotation speed of the wire winding machine 150 should also be reduced to decrease the wire drawing speed, so as to adapt to the wire drawing mode during the temperature adjustment process and ensure the quality of wire drawing.

[0097] Example 2

[0098] Based on the same inventive concept as the foregoing embodiments, and referring to... Figures 1-3 This embodiment also provides a basalt fiber drawing adjustment system, including:

[0099] The viscosity acquisition module is used to acquire the viscosity of the melt in the casting furnace 110; wherein the casting furnace 110 is used to hold the molten basalt glass.

[0100] The first data processing module is used to determine whether the melt viscosity is within the preset viscosity threshold range. If so, it returns to the process of obtaining the melt viscosity in the casting furnace 110. If not, it continuously obtains multiple images of the basalt fiber 170 in the drawing state per unit time.

[0101] The second data processing module is used to identify whether there are abnormal wire drawing characteristics based on multiple wire drawing state images. If not, it returns to obtain the melt viscosity in the casting furnace 110. If so, it obtains the first temperature adjustment parameter. The first temperature adjustment parameter is used to adjust the melt temperature in the casting furnace 110.

[0102] The curve adjustment module is used to input the first temperature adjustment parameter into the viscosity-temperature initial curve of the drawing process in order to update and obtain the viscosity-temperature target curve.

[0103] The explanations and examples of each module in the device of this embodiment can be referred to the methods of the foregoing embodiments, and will not be repeated here.

[0104] Example 3

[0105] Based on the same inventive concept as the foregoing embodiments, this embodiment provides a computer device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the above-described method.

[0106] Example 4

[0107] Based on the same inventive concept as the foregoing embodiments, this embodiment provides a computer-readable storage medium storing a computer program, on which a processor executes the computer program to implement the above-described method.

[0108] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for adjusting the drawing of basalt fibers, characterized in that, Includes the following steps: The viscosity of the melt in the casting furnace is obtained; wherein the casting furnace is used to hold the molten basalt glass. Determine whether the melt viscosity is within the preset viscosity threshold range. If yes, return to obtain the melt viscosity in the casting furnace. If no, continuously acquire multiple images of the basalt fiber drawing state per unit time. Based on multiple images of the wire drawing state, the system identifies whether there are any abnormal wire drawing characteristics. If not, it returns to obtaining the melt viscosity in the casting furnace; if so, it obtains a first temperature adjustment parameter. This first temperature adjustment parameter is used to adjust the melt temperature in the casting furnace. The casting furnace has a common baffle plate and a special baffle plate connected to its bottom. A baffle valve is installed at the bottom of the casting furnace to block only the common baffle plate or the special baffle plate. The special baffle plate includes a temperature control box connected to the bottom of the casting furnace, containing a temperature control medium. Multiple vertically arranged flow channels are installed through the temperature control box, with the top of each flow channel connected to the casting furnace and a nozzle at the bottom. After obtaining the first temperature adjustment parameter, the system further includes: obtaining a baffle valve switching signal to switch the baffle valve to the position blocking the top of the common baffle plate; comparing the melt viscosity with a viscosity threshold to obtain a comparison result; and obtaining a second temperature adjustment parameter based on the comparison result. This second temperature adjustment parameter is used to adjust the temperature of the temperature control medium. The first temperature adjustment parameter is input into the viscosity-temperature initial curve of the fiber drawing process to update and obtain the viscosity-temperature target curve.

2. The basalt fiber drawing adjustment method as described in claim 1, characterized in that, Based on multiple images of the stringing state, identify whether there are any abnormal stringing characteristics, including: Identify the actual number of basalt fibers in each drawn image; Determine whether the actual number of fibers is equal to the preset fiber count threshold. If not, identify the presence of the first abnormal fiber drawing feature. If yes, identify the diameter parameter of the basalt fiber in each fiber drawing state image. The first abnormal fiber drawing feature is basalt fiber breakage. Determine whether a single image of the basalt fiber drawing state has n diameter parameters that are less than a preset diameter threshold. If so, identify the presence of a second basalt fiber drawing anomaly. If not, identify the absence of a second basalt fiber drawing anomaly. The second basalt fiber drawing anomaly is that the basalt fibers are too fine.

3. The basalt fiber drawing adjustment method as described in claim 2, characterized in that, Identify the diameter parameters of the basalt fibers in each drawn image, including: The target area is extracted from the image of the filament drawing state to obtain the target image; the target image contains only one basalt fiber. The target image is then sequentially enlarged and its edges are sharpened. The processed target image is segmented to obtain multiple sub-images; wherein the segmentation direction is perpendicular to the length direction of the basalt fiber. The sub-images are sequentially enlarged and their edges sharpened. Obtain the measured length of the target line in the processed sub-image; where the target line is the strip projection of the segmented basalt fiber; The measured length is output as a diameter parameter.

4. The basalt fiber drawing adjustment method as described in claim 1, characterized in that, The comparison results include the first comparison result and the second comparison result. The second temperature adjustment parameter includes the temperature increase parameter and the temperature decrease parameter. The first comparison result is the maximum value of the melt viscosity that is greater than the viscosity threshold, and the second comparison result is the minimum value of the melt viscosity that is less than the viscosity threshold. Based on the comparison results, the second temperature adjustment parameters are obtained, including: If it is identified as the first comparison result, then obtain the temperature adjustment parameter; If identified as the second comparison result, the temperature reduction parameter is obtained.

5. The basalt fiber drawing adjustment method as described in claim 4, characterized in that, Let the adjustment value of the second temperature control parameter be ΔQ, and the expression for ΔQ be: ΔQ = |K*η - Q|; In the formula, K is the correlation coefficient, η is the ideal viscosity, and Q is the current temperature of the temperature-regulating medium.

6. The method for adjusting the drawing of basalt fibers as described in claim 1, characterized in that, After obtaining the first temperature adjustment parameter, the following is also included: Obtain the parameters for adjusting the speed of the wire winding machine.

7. A basalt fiber drawing adjustment system, characterized in that, include: The viscosity acquisition module is used to acquire the viscosity of the melt in the casting furnace; wherein, the casting furnace is used to hold the molten basalt glass. The first data processing module is used to determine whether the melt viscosity is within the preset viscosity threshold range. If it is, it returns to the process of obtaining the melt viscosity in the casting furnace. If not, it continuously obtains multiple images of the basalt fiber drawing state per unit time. The second data processing module is used to identify whether there are abnormal characteristics in the wire drawing based on multiple wire drawing state images. If not, it returns to obtaining the melt viscosity in the casting furnace; if so, it obtains the first temperature adjustment parameter. The first temperature adjustment parameter is used to adjust the melt temperature in the casting furnace. The bottom of the casting furnace is connected to a common baffle plate and a special baffle plate. A baffle valve is installed at the bottom of the casting furnace to block only the common baffle plate or the special baffle plate. The special baffle plate includes a temperature control box connected to the bottom of the casting furnace, containing a temperature control medium. Multiple vertically arranged flow channels are installed through the temperature control box, with the top of the flow channels connected to the casting furnace and the bottom of each flow channel having a nozzle. After obtaining the first temperature adjustment parameter, the module further includes: obtaining a baffle valve switching signal to switch the baffle valve to the position blocking the top of the common baffle plate; comparing the melt viscosity with a viscosity threshold to obtain a comparison result; and obtaining the second temperature adjustment parameter based on the comparison result. The second temperature adjustment parameter is used to adjust the temperature of the temperature control medium. The curve adjustment module is used to input the first temperature adjustment parameter into the viscosity-temperature initial curve of the drawing process in order to update and obtain the viscosity-temperature target curve.

8. A computer device, characterized in that, The computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement a basalt fiber drawing adjustment method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and the processor executes the computer program to implement a basalt fiber drawing adjustment method as described in any one of claims 1-6.

Citation Information

Patent Citations

  • Method and device for evaluating stability of wire drawing process, electronic equipment and storage medium

    CN119578289A